TTM20152014201320122011
Gross margin11.6%13.0%12.1%9.5%11.7%10.7%
Gross margin growth (bps)-16483263-218100155
Operating margin0.4%1.4%4.4%2.7%5.4%4.0%
Operating margin growth (bps)-338-300167-269145373
Net profit margin-0.5%0.8%2.7%1.6%3.2%2.3%
Net profit margin growth (bps)-289-196116-16090439